1 // Copyright 2006-2008 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are
6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided
11 // with the distribution.
12 // * Neither the name of Google Inc. nor the names of its
13 // contributors may be used to endorse or promote products derived
14 // from this software without specific prior written permission.
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 // TODO(isolates): is it necessary to lift this?
35 static int fatal_error_handler_nesting_depth = 0;
37 // Contains protection against recursive calls (faults while handling faults).
38 extern "C" void V8_Fatal(const char* file, int line, const char* format, ...) {
41 fatal_error_handler_nesting_depth++;
42 // First time we try to print an error message
43 if (fatal_error_handler_nesting_depth < 2) {
44 i::OS::PrintError("\n\n#\n# Fatal error in %s, line %d\n# ", file, line);
46 va_start(arguments, format);
47 i::OS::VPrintError(format, arguments);
49 i::OS::PrintError("\n#\n\n");
51 // First two times we may try to print a stack dump.
52 if (fatal_error_handler_nesting_depth < 3) {
53 if (i::FLAG_stack_trace_on_abort) {
54 // Call this one twice on double fault
55 i::Isolate::Current()->PrintStack();
62 void CheckEqualsHelper(const char* file,
64 const char* expected_source,
65 v8::Handle<v8::Value> expected,
66 const char* value_source,
67 v8::Handle<v8::Value> value) {
68 if (!expected->Equals(value)) {
69 v8::String::Utf8Value value_str(value);
70 v8::String::Utf8Value expected_str(expected);
72 "CHECK_EQ(%s, %s) failed\n# Expected: %s\n# Found: %s",
73 expected_source, value_source, *expected_str, *value_str);
78 void CheckNonEqualsHelper(const char* file,
80 const char* unexpected_source,
81 v8::Handle<v8::Value> unexpected,
82 const char* value_source,
83 v8::Handle<v8::Value> value) {
84 if (unexpected->Equals(value)) {
85 v8::String::Utf8Value value_str(value);
86 V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n# Value: %s",
87 unexpected_source, value_source, *value_str);
92 void API_Fatal(const char* location, const char* format, ...) {
93 i::OS::PrintError("\n#\n# Fatal error in %s\n# ", location);
95 va_start(arguments, format);
96 i::OS::VPrintError(format, arguments);
98 i::OS::PrintError("\n#\n\n");
103 namespace v8 { namespace internal {
105 bool EnableSlowAsserts() { return FLAG_enable_slow_asserts; }
107 intptr_t HeapObjectTagMask() { return kHeapObjectTagMask; }
109 } } // namespace v8::internal